iterator.hpp

#ifndef ITERATOR_HPP
# define ITERATOR_HPP

namespace	ft
{
	struct input_iterator_tag {};
	struct output_iterator_tag {};
	struct forward_iterator_tag : public input_iterator_tag {};
	struct bidirectional_iterator_tag : public forward_iterator_tag {};
	struct random_access_iterator_tag : public bidirectional_iterator_tag {};

	template	<class Iterator>
	class	iterator_traits;

	template	<class T>
	class	iterator_traits<T*>;

	template	<class T>
	class	iterator_traits<const T*>;

	template	<class Iterator>
	class	iterator_traits
	{
	public:
		typedef typename Iterator::difference_type		difference_type;
		typedef typename Iterator::value_type			value_type;
		typedef typename Iterator::pointer				pointer;
		typedef typename Iterator::reference			reference;
		typedef typename Iterator::iterator_category	iterator_category;
	};

	template	<class T>
	class	iterator_traits<T*>
	{
	public:
		typedef ptrdiff_t					difference_type;
		typedef T							value_type;
		typedef T*							pointer;
		typedef T&							reference;
		typedef random_access_iterator_tag	iterator_category;
	};

	template	<class T>
	class	iterator_traits<const T*>
	{
	public:
		typedef ptrdiff_t					difference_type;
		typedef const T						value_type;
		typedef const T*					pointer;
		typedef const T&					reference;
		typedef random_access_iterator_tag	iterator_category;
	};
}

#endif